From £42,256
Originally established in 1996 ELV8 has set the highest standards within the building industry, achieving success by winning numerous gold awards f...
From £42,472
We are a Design and Build Company, based in London.We focus on super prime and luxury residential renovations in and around London and internationa...
From £42,040
We Love Build - Three Arches is an established extension buildering business in Savile Row. We come highly recommended and provide competitive quot...
From £42,024
Luxe Refurbs is an established extension buildering business in Savile Row. We come highly recommended and provide competitive quotes for your work...
From £42,400
Starfish Properties is a trusted extension builder serving customers in Savile Row and the surrounding area. Contact us to today to get a competiti...
From £42,352
Experienced extension builder ready to quote for your work. Mayfair Design is the best extension builder in Savile Row. No obligation free quotes a...
From £42,064
Experienced extension builder ready to quote for your work. Cornerstone is the best extension builder in Savile Row. No obligation free quotes and ...
From £42,432
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £42,336
Big Mamma is an established and experienced local extension builder in Savile Row. Please contact us for a free, no obligation quote and competitiv...
From £42,088
Dominic Payte - Design & Build is an established extension buildering business in Savile Row. We come highly recommended and provide competitive qu...

In Savile Row, prices for dormer loft conversions range from £42,024 (Luxe Refurbs based in W1J) to £42,472 (We Love Build based in W1J), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.
The best way to get an accurate price is to compare quotes from extension builders in Savile Row. Post your job on HaMuch now and we'll put you in touch with available extension builders.
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,746

Two storey extension - £88,370

Build a timber frame extension - £26,246

Build a swimming pool - £81,246

Single storey extension - £59,928

Side return extension - £44,272

Install an RSJ - £2,446

Outbuilding - £10,246

Build a Mansard loft conversion - £52,246

Loft conversion - £36,060

Build a kitchen extension - £42,246

Hip to gable loft conversion - £42,246

Granny annexe - £87,246

Garden office - £10,246

Convert a Garage - £16,246

Garage - £18,746

Build a flat roof extension - £22,246

Build a dormer loft conversion - £42,246

Concrete foundations - £6,496

Convert a bungalow loft - £29,246

Convert a basement - £40,272